feat(auth): 添加登录功能和路由保护

- 在侧边栏添加退出登录按钮并实现登出逻辑
- 添加 ProtectedRoute 组件用于路由权限控制
- 创建 LoginPage 组件实现登录界面和逻辑
- 集成本地登录验证到 authSlice 状态管理
- 配置路由表添加登录页面和保护路由
- 实现自动跳转到登录页面的重定向逻辑

frontend/src/pages/Layout/Sidebar.tsx

@@ -4,6 +4,7 @@ import {
   CloseOutlined,
   MenuOutlined,
   SettingOutlined,
+  LogoutOutlined,
 } from "@ant-design/icons";
 import { ClipboardList, X } from "lucide-react";
 import { menuItems } from "@/pages/Layout/menu";
@@ -12,6 +13,7 @@ import TaskUpload from "./TaskUpload";
 import SettingsPage from "../SettingsPage/SettingsPage";
 import { useAppSelector, useAppDispatch } from "@/store/hooks";
 import { showSettings, hideSettings } from "@/store/slices/settingsSlice";
+import { logout } from "@/store/slices/authSlice";
 
 const isPathMatch = (currentPath: string, targetPath: string) =>
   currentPath === targetPath || currentPath.startsWith(`${targetPath}/`);
@@ -67,6 +69,11 @@ const AsiderAndHeaderLayout = () => {
     };
   }, []);
 
+  const handleLogout = () => {
+    dispatch(logout());
+    navigate("/login");
+  };
+
   return (
     <div
       className={`${
@@ -148,6 +155,9 @@ const AsiderAndHeaderLayout = () => {
             >
               设置
             </Button>
+            <Button block danger onClick={handleLogout}>
+              退出登录
+            </Button>
           </div>
         ) : (
           <div className="space-y-2">
@@ -175,6 +185,7 @@ const AsiderAndHeaderLayout = () => {
             >
               <SettingOutlined />
             </Button>
+            <Button block danger onClick={handleLogout} icon={<LogoutOutlined />} />
           </div>
         )}
       </div>

frontend/src/pages/Login/LoginPage.tsx

@@ -0,0 +1,114 @@
+import React, { useState } from 'react';
+import { useNavigate, useLocation } from 'react-router';
+import { Form, Input, Button, Typography, message, Card } from 'antd';
+import { UserOutlined, LockOutlined } from '@ant-design/icons';
+import { useAppDispatch, useAppSelector } from '@/store/hooks';
+import { loginLocal } from '@/store/slices/authSlice';
+
+const { Title, Text } = Typography;
+
+const LoginPage: React.FC = () => {
+  const navigate = useNavigate();
+  const location = useLocation();
+  const dispatch = useAppDispatch();
+  const { loading, error } = useAppSelector((state) => state.auth);
+  const [messageApi, contextHolder] = message.useMessage();
+
+  const from = location.state?.from?.pathname || '/data';
+
+  const onFinish = (values: any) => {
+    dispatch(loginLocal(values));
+    // The reducer updates state synchronously.
+    if (values.username === 'admin' && values.password === '123456') {
+        messageApi.success('登录成功');
+        navigate(from, { replace: true });
+    } else {
+        messageApi.error('账号或密码错误');
+    }
+  };
+
+  return (
+    <div className="min-h-screen flex items-center justify-center bg-[#050b14] relative overflow-hidden">
+      {contextHolder}
+
+      {/* Background Effects */}
+      <div className="absolute inset-0 z-0">
+        <div className="absolute top-0 left-0 w-full h-full bg-[radial-gradient(ellipse_at_center,_var(--tw-gradient-stops))] from-blue-900/20 via-[#050b14] to-[#050b14]"></div>
+        {/* Simple grid pattern if possible, or just gradient */}
+      </div>
+
+      <div className="absolute top-1/4 left-1/4 w-72 h-72 bg-blue-500/10 rounded-full blur-3xl animate-pulse"></div>
+      <div className="absolute bottom-1/4 right-1/4 w-96 h-96 bg-cyan-500/10 rounded-full blur-3xl animate-pulse delay-700"></div>
+
+      <div className="z-10 w-full max-w-md p-8 animate-[fadeIn_0.5s_ease-out_forwards]">
+        <div className="backdrop-blur-xl bg-white/5 border border-white/10 rounded-2xl shadow-2xl p-8 relative overflow-hidden">
+          {/* Decorative line */}
+          <div className="absolute top-0 left-0 w-full h-1 bg-gradient-to-r from-transparent via-blue-500 to-transparent"></div>
+
+          <div className="text-center mb-8">
+            <div className="inline-flex items-center justify-center w-16 h-16 rounded-full bg-blue-500/20 mb-4 border border-blue-500/30">
+              <svg className="w-8 h-8 text-blue-400" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" />
+              </svg>
+            </div>
+            <Title level={2} className="!text-white !mb-2 tracking-wide font-bold">
+              DataBuilder
+            </Title>
+            <Text className="text-gray-400 text-sm tracking-wider">
+              一站式数据工作平台
+            </Text>
+          </div>
+
+          <Form
+            name="login"
+            initialValues={{ remember: true, username: 'admin', password: '123456' }}
+            onFinish={onFinish}
+            layout="vertical"
+            size="large"
+          >
+            <Form.Item
+              name="username"
+              rules={[{ required: true, message: '请输入账号！' }]}
+            >
+              <Input
+                prefix={<UserOutlined className="text-blue-400" />}
+                placeholder="账号"
+                className="!bg-white/5 !border-white/10 !text-white placeholder:!text-gray-600 hover:!border-blue-500/50 focus:!border-blue-500 !rounded-lg"
+              />
+            </Form.Item>
+            <Form.Item
+              name="password"
+              rules={[{ required: true, message: '请输入密码！' }]}
+            >
+              <Input.Password
+                prefix={<LockOutlined className="text-blue-400" />}
+                type="password"
+                placeholder="密码"
+                className="!bg-white/5 !border-white/10 !text-white placeholder:!text-gray-600 hover:!border-blue-500/50 focus:!border-blue-500 !rounded-lg"
+              />
+            </Form.Item>
+
+            <Form.Item className="mb-2">
+              <Button
+                type="primary"
+                htmlType="submit"
+                className="w-full bg-gradient-to-r from-blue-600 to-cyan-600 hover:from-blue-500 hover:to-cyan-500 border-none h-12 rounded-lg font-semibold tracking-wide shadow-lg shadow-blue-900/20"
+                loading={loading}
+              >
+                登录系统
+              </Button>
+            </Form.Item>
+
+            <div className="text-center mt-4">
+              <Text className="text-gray-600 text-xs">
+                企业级数据处理平台 · 安全接入
+              </Text>
+            </div>
+          </Form>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default LoginPage;